<template>
  <div class="goods-comment">
    <!-- 评价头部 -->
    <div class="head" v-if="commentInfo">
      <div class="data">
        <p><span>{{ commentInfo.salesCount }}</span><span>人购买</span></p>
        <p><span>{{ commentInfo.praisePercent }}%</span><span>好评率</span></p>
      </div>
      <div class="tags">
        <div class="dt">大家都在说：</div>
        <div class="dd">
          <a href="javascript:;" @click="changeTag(i)" :class="{ active: currentTagIndex === i}"
            v-for="item,i in commentInfo.tags" :key="item.title">{{ item.title }}（{{ item.tagCount }}）</a>
        </div>
      </div>
    </div>
    <!-- 排序 -->
    <div class="sort">
      <span>排序：</span>
      <a href="javascript:;" :class="{ active: reqParams.sortField === null }" @click="changeSort(null)">默认</a>
      <a href="javascript:;" :class="{ active: reqParams.sortField ===  'praiseCount'}" @click="changeSort('praiseCount')">最新</a>
      <a href="javascript:;" :class="{ active: reqParams.sortField === 'createTime'}" @click="changeSort('createTime')">最热</a>
    </div>
    <!-- 评价列表 -->
    <div class="list" v-if="commentList">
      <div class="item" v-for="item in commentList" :key="item.id">
        <div class="user">
          <img :src="item.member.avatar" alt="">
          <span>{{ formatNickname(item.member.nickname) }}</span>
        </div>
        <div class="body">
          <div class="score">
            <i v-for="i in item.score" :key="i + 's'" class="iconfont icon-wjx01"></i>
            <i v-for="i in (5 - item.score)" :key="i + 'k'" class="iconfont icon-wjx02"></i>
            <span class="attr">{{ formatSpecs(item.orderInfo.specs) }}</span>
          </div>
          <div class="text">{{ item.content }}</div>
          <GoodsCommentImage v-if="item.pictures.length" :pictures="item.picutres"></GoodsCommentImage>
          <div class="time">
            <span>{{ item.createTime }}</span>
            <span class="zan"><i class="iconfont icon-dianzan"></i>{{ item.praiseCount }}</span>
          </div>
        </div>
      </div>
    </div>
    <XtxPagination :total="total" @current-page="changePageFn" v-if="total"></XtxPagination>
  </div>
</template>
<script>
import { findCommentInfoByGoodsAPI, findGoodsCommentListAPI } from '@/api/product'
import { ref, inject, reactive, watch } from 'vue'
import GoodsCommentImage from './GoodsCommentImage'

export default {
  name: 'GoodsComment',
  components: {
    GoodsCommentImage
  },

  setup () {
    const commentInfo = ref(null)
    const goods = inject('goods')
    findCommentInfoByGoodsAPI(goods.value.id).then(data => {
      data.result.tags.unshift({ title: '有图', tagCount: data.result.hasPictureCount, type: 'img' })
      data.result.tags.unshift({ title: '全部评价', tagCount: data.result.evaluateCount, type: 'all' })
      commentInfo.value = data.result
    })

    // 激活tag
    const currentTagIndex = ref(0)

    function changeTag (i) {
      currentTagIndex.value = i
      const tag = commentInfo.value.tags[i]
      // 全部评价
      if (tag.type === 'all') {
        reqParams.hasPicture = null
        reqParams.tag = null
        // 有图
      } else if (tag.type === 'img') {
        reqParams.hasPicture = true
        reqParams.tag = null
      } else {
        reqParams.hasPicture = null
        reqParams.tag = tag.title
      }
      // 重置页码为1
      reqParams.page = 1
    }

    function changeSort (val) {
      reqParams.sortField = val
      // 重置页码为1
      reqParams.page = 1
    }

    const formatSpecs = (data) => {
      return data.reduce((p, c) => `${p} ${c.name} : ${c.nameValue}`, '').trim()
    }

    const formatNickname = (nickname) => {
      return nickname.subStr(0, 1) + '****' + nickname.subStr(-1)
    }

    function changePageFn (val) {
      reqParams.page = val
    }

    // 准备筛选条件数据
    const reqParams = reactive({
      page: 1,
      pageSize: 10,
      hasPicture: null,
      tag: null,
      sortField: null
    })

    const commentList = ref(null)
    const total = ref(0)
    // 初始化发起请求,条件改变重新发
    watch(reqParams, () => {
      findGoodsCommentListAPI(goods.id, reqParams).then(data => {
        commentList.value = data.result.items
        total.value = data.result.counts
      })
    }, { immediate: true })
    return {
      commentInfo, currentTagIndex, changeTag, reqParams, commentList, changeSort, formatSpecs, formatNickname, total, changePageFn
    }
  }
}
</script>
<style scoped lang="less">
.goods-comment {
  .head {
    display: flex;
    padding: 30px 0;

    .data {
      width: 340px;
      display: flex;
      padding: 20px;

      p {
        flex: 1;
        text-align: center;

        span {
          display: block;

          &:first-child {
            font-size: 32px;
            color: @priceColor;
          }

          &:last-child {
            color: #999;
          }
        }
      }
    }

    .tags {
      flex: 1;
      display: flex;
      border-left: 1px solid #f5f5f5;

      .dt {
        font-weight: bold;
        width: 100px;
        text-align: right;
        line-height: 42px;
      }

      .dd {
        flex: 1;
        display: flex;
        flex-wrap: wrap;

        >a {
          width: 132px;
          height: 42px;
          margin-left: 20px;
          margin-bottom: 20px;
          border-radius: 4px;
          border: 1px solid #e4e4e4;
          background: #f5f5f5;
          color: #999;
          text-align: center;
          line-height: 40px;

          &:hover {
            border-color: @xtxColor;
            background: lighten(@xtxColor, 50%);
            color: @xtxColor;
          }

          &.active {
            border-color: @xtxColor;
            background: @xtxColor;
            color: #fff;
          }
        }
      }
    }
  }

  .sort {
    height: 60px;
    line-height: 60px;
    border-top: 1px solid #f5f5f5;
    border-bottom: 1px solid #f5f5f5;
    margin: 0 20px;
    color: #666;

    >span {
      margin-left: 20px;
    }

    >a {
      margin-left: 30px;

      &.active,
      &:hover {
        color: @xtxColor;
      }
    }
  }
}

.list {
  padding: 0 20px;

  .item {
    display: flex;
    padding: 25px 10px;
    border-bottom: 1px solid #f5f5f5;

    .user {
      width: 160px;

      img {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        overflow: hidden;
      }

      span {
        padding-left: 10px;
        color: #666;
      }
    }

    .body {
      flex: 1;

      .score {
        line-height: 40px;

        .iconfont {
          color: #ff9240;
          padding-right: 3px;
        }

        .attr {
          padding-left: 10px;
          color: #666;
        }
      }
    }

    .text {
      color: #666;
      line-height: 24px;
    }

    .time {
      color: #999;
      display: flex;
      justify-content: space-between;
      margin-top: 5px;
    }
  }
}
</style>
